THE STRUCTURE OF CERTAIN NEW HYBRIDS. 161 
The young stems and branches are five-angled, one of the angles 
being more obtuse than the others. The younger branches are full of 
pure-white pith, or more or less hollow; slightly glaucous, the side 
exposed to the sun often reddish. 
The stipules (fig. 69) are obliquely lanceolate, apiculate, serrate on 
the longer side, the teeth distinctly glandular; the largest 1,); in. long, 
and ,°- in. wide. 
The leaf-stalk (fig. 72) is 14 to 3 in. long, nearly cylindrical, flat on the 
top, the ridges obscure. The petiolar glands are large, sessile, grey, very 
often five in number, irregularly distributed, pretty often two of them 
being paired. Four or six glands are of fairly common occurrence, the 
former being often in pairs—one pair above and the other beneath the 
middle of the petiole. 
The leaf-blades are always tri-lobed, the largest example 6 in. long 
and 7 in. wide, bright green above, light bluish-green underneath ; the 
JHW 
Fic. 68.—P. auBa. Fic. 69.—P. Sr. Rute. Fic. 70.—P. BuonaPaRTEA. 
SrreuLeEs (nat. size). 
middle lobe with usually one, sometimes two, obscure notches } to 4 in. 
from the base. 
The peduncle is 1 in. long, sub-cylindrical, curved upwards a little, 
and so directed as commonly to bring the face of the flower into a vertical 
position, or give it a slight tilt upwards. 
The bracts are + to 1 in. long, 3 to # in. wide; ovate-cordate, serrate, 
with actively secreting glandular teeth. 
The flowers are as a rule produced singly on individual branches, 
but very often in pairs, one in each of two neighbouring nodes. They 
are (figs. 67 and 75) 3 in. in diameter, exclusive of the aristz of the 
sepals. The odour is Ivis-like, faint and pleasant, resembling that of 
P. Margaret Wilson. 
The sepals are 13 in. long, ,’5 in. broad at base ; in fully open flowers 
bent back 25° to 30° below the horizontal, and causing the bracts to be 
folded back above the middle ; thick, with spongy texture, the lower side 
M 
